ἀπερικακήτως

From LSJ

ἀμήχανον δὲ παντὸς ἀνδρὸς ἐκμαθεῖν ψυχήν τε καὶ φρόνημα καὶ γνώμην, πρὶν ἂν ἀρχαῖς τε καὶ νόμοισιν ἐντριβὴς φανῇ → hard it is to learn the mind of any mortal or the heart, 'till he be tried in chief authority | it is impossible to know fully any man's character, will, or judgment, until he has been proved by the test of rule and law-giving

Source

Spanish (DGE)

adv. infatigablemente ἀ. αἰτεῖν Mac.Aeg.M.34.493A, ἀ. ὀφείλει ζητεῖν τὴν δωρεὰν τοῦ Θεοῦ Mac.Aeg.M.34.717B.

Translations

tirelessly

Catalan: incansablement; English: tirelessly, indefatigably; Galician: incansablemente, incansabelmente; Greek: ακούραστα, ακαμάτως, ακαταπόνητα; Ancient Greek: ἀγρύπνως, ἀκάματα, ἀκαμάτως, ἀκοπιάστως, ἀκοπιάτως, ἀμοχθήτως, ἀόκνότατα, ἀόκνως, ἀπερικακήτως, ἀτρύτως, ἀτρύχως; Portuguese: incansavelmente; Russian: неустанно, неутомимо, без устали; Spanish: incansablemente, infatigablemente, a destajo; Turkish: yorulmadan; Czech: neúnavně; Macedonian: неуморност, безуморност; Norwegian: utrettelig